Silo and tank lug



Aug. 20, 1946. c. s. .ANDERSON sILo AND lTANK LUG Filed my 26,y 1944 U o il IN V EN TOR. Klaren@ 'Andersm Patented Aug. 20, 1946 UNiTsp STATES PATENT orties SILO AND TANK LUG Clarence S. Anderson, Des Moines, Iowa Application July 26, 1944, Serial No. 546,701

2 Claims. 1

My invention relates to an improvement in lugs for silos and tanks. These lugs are employed for the purpose of tying together the ends of the rods or bands which extend around the silos and tanks.

It is my purpose in developing the present invention to provide a lug for the purpose mentioned which can be a satisfactory substitute for the cast lugs heretofore commonly used and yet can be conveniently die-stamped from small pieces of scrap so as to effect substantial savings in cost.

It is also particularly my purpose to provide a lug with the parts so shaped and cooperatively arranged that while they can be stamped from scraps of sheets, the finished product wil1 have the sturdy strength and wearing qualities necessary for holding the bands or rods on silos, tanks and other similar structures.

With these and other objects in View, my invention consists in the construction, arrangement and combination of the various parts of my silo and tank lug wherebyT the objects contemplated are attained, as hereinafter more fully set forth, pointed out in my claims and illustrated in the accompanying drawing, wherein:

Figure 1 is a perspective view of a silo and tank lug embodying my invention;

Figure 2 is a horizontal sectional View of a portion of a silo or tank wall showing in top elevation the ends of a b-and installed in one of my improved lugs;

Figure 3 is an exploded view in perspective of the parts of the lug before they are fastened together;

Figure 4 is a detail sectional view taken on the line 4--4 of Figure 1, and

Figure 5 is a detail sectional view taken on the line 5 5 of Figure 1.

In building silos and tanks, it is a common practice to put iron rods, sometimes called bands, around the structure. The ends of each band must be fastened together, and to accomplish this purpose of fastening them together, it is the common practice to use so-called lugs. Cast lugs have been used for many years. By some they have been considered the best for the purpose because they had the inherent strength and sturdiness necessary for the purpose. Some stamped lugs have also been used.

In making my improved lug, which is the subject of this application, I form a channel-shaped element indicated generally at l, and having the shape of the common silo lug. At each end of each side of the channel-shaped element I there is provided a notch 2. At each end of the middle of the channel element l a substantially flat member is formed by stamping and is bent into the channel as seen in Figure 3 at 3. These members 3 incline away from each other slightly as indicated in Figure 4. The outer faces of the members 3 are ilush with the edges of the channel element l at the ends of that element so that the end members hereinafter mentioned may t snugly against Ithe outer faces of the members 3 and against the ends of the channelshaped element I.

At each en-d of the channel member l I provide a stamped end member 4 to fit against the end of the channel element l and against the channel member 3 as illustrated for instance in Figure 4. The end meirbers 4 have suitable holes 5 to receive the bands or rods. They are welded to the members 3. Each end member 4 has a substantially right angle flange 6 along one edge and the parts are so arranged that when the end member is in position, the ends of its flange 0 seat snugly in the notches 2 at that end of the lug. 'Ihe anges 6 serve the purpose of reinforcing and strengthening the lug. They also afford a relatively broad fiat surface that will not cut into the face of the silo or tank wall as the edges of the channel-shaped element l at the sides thereof might do in some cases.

In using my improved lug, it is installed in the same Way as is any other lug. Y

In Figure 2, 'l shows the silo wal1 and 8 is the band, the ends of which are extended through the holes in the lug and receive nuts 9.

Lugs of the kind under consideration can be stamped from scrap pieces of sheets. The dies used in making the stamping are comparatively simple and the number of operations for completing keach lug is small. I have found that the lugs are strong enough to stand up under all ordinary conditions of use.

It is my purpose to cover by my claims any such departures from the exact structure illustrated in the drawing that may come within the scope of my invention and of such claims.

I claim as my invention:

l. In a device of the kind described, a channelshaped element having notches in its sides at their ends and having at its ends midway between its sides substantially flat members extending from the bottom of the channel into the channel and slightly away from each other, the outer faces of said members being flush with the outer ends of the channel element, and a closure member at each end of the channel clenentabutting the channel ends and secured to )ne of said members and having an inturned [lange overlapping the sides of the channel and inset in said notches in said sides, said closure members having suitable holes to receive silo or tank bands.

2. In a silo and tank lug, a formed sheet metal open-ended channel body member having two individual channels tilted at opposite angles to receive tank band ends, the free edges of the outer Walls of said channel member being notched at their ends, and a separate closure member secured to each end of said channel member, each closure member having an inturned ange extending across said channels and lying in said notches, each of said closure members having a hole aligned with each channel.

CLARENCE S. ANDERSON. 

